CVE-2026-72072

The CVE-2026-72072 issue affects the Linux kernel’s mlx5e MACsec offload path. A use-after-free could occur when an offloaded MACsec RX SC is deleted: metadata_dst was freed unconditionally via metadata_dst_free(), ignoring the reference count, while readers could attach a freed dst to an skb dur...

EUVD-2026-59030

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: macsec: fix use-after-free of metadatadst on RX SC delete When an offloaded MACsec RX SC is deleted, macsecdelrxscctx freed the per-SC metadatadst with metadatadstfree, which kfrees the object unconditionally and ignor...

CVE-2026-72072 net/mlx5e: macsec: fix use-after-free of metadata_dst on RX SC delete

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: macsec: fix use-after-free of metadatadst on RX SC delete When an offloaded MACsec RX SC is deleted, macsecdelrxscctx freed the per-SC metadatadst with metadatadstfree, which kfrees the object unconditionally and ignor...

CVE-2026-72019

CVE-2026-72019 affects the Linux kernel macsec path: macsec_encrypt() reads the Ethernet header via eth_hdr(skb) when skb->mac_header is unset on AF_PACKET SOCK_RAW + PACKET_QDISC_BYPASS, causing a 12-byte heap over-read and the frame’s outer MAC to be read on the wire. The issue occurs becaus...

EUVD-2026-58977

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

CVE-2026-72019 macsec: don't read an unset MAC header in macsec_encrypt()

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

CVE-2026-72019 macsec: don't read an unset MAC header in macsec_encrypt()

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

PT-2026-72208

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.0 Description An issue exists in the macsec encrypt function where the Ethernet header is read via eth hdrskb to move source and destination MAC bytes forward for SecTAG placement. On the AF PACKET SOCK RAW + PACKET QDIS...

CVE-2026-72072: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: macsec: fix use-after-free of metadatadst on RX SC delete When an offloaded MACsec RX SC is deleted, macsecdelrxscctx freed the per-SC metadatadst with metadatadstfree, which kfrees the object unconditionally and ignor...

PT-2026-72261

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the net/mlx5e macsec component. When an offloaded MACsec RX SC is deleted, the macsec del rxsc ctx function frees the metadata dst object unconditionally...

Linux Distros Unpatched Vulnerability : CVE-2026-72019

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12...

CVE-2026-72019: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

SUSE CVE-2026-63925

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

Linux Distros Unpatched Vulnerability : CVE-2026-63925

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If...

CVE-2026-63925

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

EUVD-2026-45698

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

CVE-2026-63925 macsec: fix replay protection at XPN lower-PN wrap

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

CVE-2026-63925 macsec: fix replay protection at XPN lower-PN wrap

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...

CVE-2026-63925

The CVE-2026-63925 issue affects the Linux kernel macsec XPN replay protection logic. When pn equals U32_MAX, pn+1 overflows to 0 and the code path for updating next_pn_halves may not fire, allowing an attacker to replay a frame carrying pn == 0xFFFFFFFF on an XPN association. The fix extends the...

CVE-2026-63925

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...